Abstract
The paper deals with study of the wear rate and specific surface electric resistance of the contact of metallic composites in dry friction at a high current density. Friction induced structures are shown to appear in the surface layer of the composites. The specific electric resistance of the friction induced structures is estimated quantitatively. It is found that their specific electric resistance is similar to that of the known electrographites and carbon graphites, resulting in a high contact resistance. The electric resistance and wear rate of the friction zone are diminished by the introduction of a Pb-Sn melt. The possibility of developing of an efficient sliding electric contact of two metallic composites with a metal melt between their friction surfaces is noted.
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